src/main/java/com/kamco/cd/kamcoback/common/download/DownloadAuditEventListener.java

@@ -0,0 +1,92 @@
+package com.kamco.cd.kamcoback.common.download;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.kamco.cd.kamcoback.common.download.dto.DownloadAuditEvent;
+import com.kamco.cd.kamcoback.menu.dto.MenuDto;
+import com.kamco.cd.kamcoback.menu.service.MenuService;
+import com.kamco.cd.kamcoback.postgres.entity.AuditLogEntity;
+import com.kamco.cd.kamcoback.postgres.repository.log.AuditLogRepository;
+import java.util.Comparator;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Objects;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.context.event.EventListener;
+import org.springframework.scheduling.annotation.Async;
+import org.springframework.stereotype.Component;
+import org.springframework.transaction.annotation.Propagation;
+import org.springframework.transaction.annotation.Transactional;
+
+@Slf4j
+@Component
+@RequiredArgsConstructor
+public class DownloadAuditEventListener {
+
+  private final AuditLogRepository auditLogRepository;
+  private final MenuService menuService;
+  private final ObjectMapper objectMapper;
+
+  @Async("auditLogExecutor")
+  @Transactional(propagation = Propagation.REQUIRES_NEW)
+  @EventListener
+  public void onDownloadAudit(DownloadAuditEvent ev) {
+    try {
+      String menuUid = resolveMenuUid(ev.normalizedUri());
+      if (menuUid == null) {
+        // menuUid null 불가 -> 스킵
+        log.warn(
+            "MenuUid not resolved. skip audit. uri={}, normalized={}",
+            ev.requestUri(),
+            ev.normalizedUri());
+        return;
+      }
+
+      AuditLogEntity logEntity =
+          AuditLogEntity.forFileDownload(
+              ev.userId(), ev.requestUri(), menuUid, ev.ip(), ev.status(), ev.downloadUuid());
+
+      auditLogRepository.save(logEntity);
+
+    } catch (Exception e) {
+      // 본 요청과 분리되어야 함
+      log.warn("Download audit save failed. uri={}, err={}", ev.requestUri(), e.toString());
+    }
+  }
+
+  private String resolveMenuUid(String normalizedUri) {
+    try {
+      List<?> list = menuService.getFindAll();
+
+      List<MenuDto.Basic> basics =
+          list.stream()
+              .map(
+                  item -> {
+                    if (item instanceof LinkedHashMap<?, ?> map) {
+                      return objectMapper.convertValue(map, MenuDto.Basic.class);
+                    } else if (item instanceof MenuDto.Basic dto) {
+                      return dto;
+                    }
+                    return null;
+                  })
+              .filter(Objects::nonNull)
+              .toList();
+
+      MenuDto.Basic basic =
+          basics.stream()
+              .filter(m -> m.getMenuUrl() != null && normalizedUri.startsWith(m.getMenuUrl()))
+              .max(Comparator.comparingInt(m -> m.getMenuUrl().length()))
+              .orElse(null);
+
+      if (basic == null) return null;
+
+      String menuUidStr = basic.getMenuUid(); // ← String
+      if (menuUidStr == null || menuUidStr.isBlank()) return null;
+
+      return menuUidStr; // ← Long 변환
+
+    } catch (Exception e) {
+      return null;
+    }
+  }
+}

src/main/java/com/kamco/cd/kamcoback/common/download/dto/DownloadAuditEvent.java

@@ -0,0 +1,11 @@
+package com.kamco.cd.kamcoback.common.download.dto;
+
+import java.util.UUID;
+
+public record DownloadAuditEvent(
+    Long userId,
+    String requestUri,
+    String normalizedUri,
+    String ip,
+    int status,
+    UUID downloadUuid) {}

src/main/java/com/kamco/cd/kamcoback/config/FileDownloadInteceptor.java

@@ -1,98 +1,64 @@
 package com.kamco.cd.kamcoback.config;
 
-import com.fasterxml.jackson.databind.ObjectMapper;
+import com.kamco.cd.kamcoback.common.download.dto.DownloadAuditEvent;
-import com.kamco.cd.kamcoback.common.utils.HeaderUtil;
 import com.kamco.cd.kamcoback.common.utils.UserUtil;
 import com.kamco.cd.kamcoback.config.api.ApiLogFunction;
-import com.kamco.cd.kamcoback.menu.dto.MenuDto;
+import jakarta.servlet.DispatcherType;
-import com.kamco.cd.kamcoback.menu.service.MenuService;
-import com.kamco.cd.kamcoback.postgres.entity.AuditLogEntity;
-import com.kamco.cd.kamcoback.postgres.repository.log.AuditLogRepository;
 import jakarta.servlet.http.HttpServletRequest;
 import jakarta.servlet.http.HttpServletResponse;
-import java.util.Comparator;
-import java.util.LinkedHashMap;
-import java.util.List;
-import java.util.Objects;
 import java.util.UUID;
+import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
-import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.ApplicationEventPublisher;
 import org.springframework.stereotype.Component;
 import org.springframework.web.servlet.HandlerInterceptor;
 
 @Slf4j
 @Component
+@RequiredArgsConstructor
 public class FileDownloadInteceptor implements HandlerInterceptor {
 
-  private final AuditLogRepository auditLogRepository;
+  private final ApplicationEventPublisher publisher;
-  private final MenuService menuService;
   private final UserUtil userUtil;
 
-  @Autowired private ObjectMapper objectMapper;
-
-  public FileDownloadInteceptor(
-      AuditLogRepository auditLogRepository, MenuService menuService, UserUtil userUtil) {
-    this.auditLogRepository = auditLogRepository;
-    this.menuService = menuService;
-    this.userUtil = userUtil;
-  }
-
   @Override
-  public boolean preHandle(
+  public void afterCompletion(
-      HttpServletRequest request, HttpServletResponse response, Object handler) {
+      HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) {
 
-    if (!request.getRequestURI().contains("/download")) return true;
+    String uri = request.getRequestURI();
+    if (uri == null || !uri.contains("/download")) return;
+    if (request.getDispatcherType() != DispatcherType.REQUEST) return;
 
-    if (request.getDispatcherType() != jakarta.servlet.DispatcherType.REQUEST) {
+    Long userId;
-      return true;
+    try {
-    }
+      userId = userUtil.getId();
-
+      if (userId == null) return; // userId null 불가면 스킵
-    saveLog(request, response);
+    } catch (Exception e) {
-
+      log.warn("Download audit userId resolve failed. uri={}, err={}", uri, e.toString());
-    return true;
-  }
-
-  private void saveLog(HttpServletRequest request, HttpServletResponse response) {
-    // 파일 다운로드 API만 필터링
-    if (!request.getRequestURI().contains("/download")) {
       return;
     }
 
-    Long userId = userUtil.getId();
     String ip = ApiLogFunction.getClientIp(request);
+    int status = response.getStatus();
+    String normalizedUri = uri.replace("/api", "");
 
-    List<?> list = menuService.getFindAll();
+    UUID downloadUuid = extractUuidFromUri(uri);
-    List<MenuDto.Basic> result =
+    if (downloadUuid == null) {
-        list.stream()
+      log.warn("Download UUID parse failed. uri={}", uri);
-            .map(
+      return; // downloadUuid null 불가 -> 스킵
-                item -> {
+    }
-                  if (item instanceof LinkedHashMap<?, ?> map) {
-                    return objectMapper.convertValue(map, MenuDto.Basic.class);
-                  } else if (item instanceof MenuDto.Basic dto) {
-                    return dto;
-                  } else {
-                    throw new IllegalStateException("Unsupported cache type: " + item.getClass());
-                  }
-                })
-            .toList();
 
-    String normalizedUri = request.getRequestURI().replace("/api", "");
+    publisher.publishEvent(
-    MenuDto.Basic basic =
+        new DownloadAuditEvent(userId, uri, normalizedUri, ip, status, downloadUuid));
-        result.stream()
+  }
-            .filter(
-                menu -> menu.getMenuUrl() != null && normalizedUri.startsWith(menu.getMenuUrl()))
-            .max(Comparator.comparingInt(m -> m.getMenuUrl().length()))
-            .orElse(null);
 
-    AuditLogEntity log =
+  private UUID extractUuidFromUri(String uri) {
-        AuditLogEntity.forFileDownload(
+    try {
-            userId,
+      String[] parts = uri.split("/");
-            request.getRequestURI(),
+      String last = parts[parts.length - 1];
-            Objects.requireNonNull(basic).getMenuUid(),
+      return UUID.fromString(last);
-            ip,
+    } catch (Exception e) {
-            response.getStatus(),
+      return null;
-            UUID.fromString(HeaderUtil.get(request, "kamco-download-uuid")));
+    }
-
-    auditLogRepository.save(log);
   }
 }

src/main/java/com/kamco/cd/kamcoback/inference/InferenceResultApiController.java

@@ -414,7 +414,7 @@ public class InferenceResultApiController {
     downloadReq.setStartDate(strtDttm);
     downloadReq.setEndDate(endDttm);
     downloadReq.setSearchValue(searchValue);
-    downloadReq.setRequestUri("/api/inference/download-audit/download/" + uuid);
+    downloadReq.setRequestUri("/api/inference/download/" + uuid);
 
     return ApiResponseDto.ok(inferenceResultService.getDownloadAudit(searchReq, downloadReq));
   }

src/main/java/com/kamco/cd/kamcoback/scheduler/config/AsyncConfig.java

@@ -20,4 +20,15 @@ public class AsyncConfig {
     ex.initialize();
     return ex;
   }
+
+  @Bean(name = "auditLogExecutor")
+  public Executor auditLogExecutor() {
+    ThreadPoolTaskExecutor exec = new ThreadPoolTaskExecutor();
+    exec.setCorePoolSize(2);
+    exec.setMaxPoolSize(8);
+    exec.setQueueCapacity(2000);
+    exec.setThreadNamePrefix("auditlog-");
+    exec.initialize();
+    return exec;
+  }
 }